Coarse yarn catcher



Sept. 30, 1947 H. BUSSIERE 2,428,064

COARSE YARN CATCHER File d June 28., 1946 :ly thereof.

Patented Sept. 30, 1947 UNITED STATES PATENT OFFICE CQA-"RSE "YARN LGAEGHER Wolcott .HfBussiere, Rittsfil'd, Mass.

Application 31111528, 1946; Serial'No. 6'80;2i'i=3 .3-(1laims. 51 This invention relates to improvements in spinning apparatus and. is directed more particularly-toimprovements in apparatus for spinning yarn.

The principal objects of the invention are the provision of apparatus adapted to be associated with :a spinning frame to .catch andbreak the roving, asitiis being'wound onto the ibobbin, when the 'roving is heavier :or coarser than is desired or will provide a yarn which is heavier or coarser than it is desired to produce.

in spinning .the roving leaves therollerbeam .tand passes through a traveler which rotates around a ring surrounding .a rotatable bobbin that .reciprocates axially and relative 'to the ring.

The reciprocation of the bobbin while itrotates fillsnp-the bobbin with the desired and particularwiorm .or shape 'ofswinding.

;A's the-yarn is wound onto the bo-bbin, which reciprocatesxup and down within and relative :to thering and ;traveler,-the action is such thatthe 'windingson the --bobbin are .of greater diameter at .one point than at anotherpoint longitudinal- As an instance the diameter of the winding may be greater adjacent the lower :end :of the bobbin than adjacent the upper end.- thereof so that" different diameters of the-windingare during the-spinning operation located in the ring where theyarn passes fromthe traveler on'torth-e bobbin. The yarn is wound onto different-(diameters accordingly as the bobbin moves up :and down.

Thehiggh speed of rotation of the bobbin-causes the roving to loop outwardly and-upwardly from the traveler whereby it extends outwardly :a greater distance from .the axis of the bobbin -or isweeps through a greater radius when a greater diameter of windingis in'the ringthan when a smaller-diameter is in said ring. Thus While the bobbin moves up and down relative to thering and traveler the .sweep of the loop formed by the 'rovinggoing'to the traveler varies in diameter :according to the diameter of the winding on the bobbin. The radial distance-frorn the loop to the winding remains substantially constant whileth'e characteristics of the roving remain constant. l hat is the distance from the loop of roving to the winding is substantially constant at all diameters'of winding.

When,.however,-the roving becomes heavier or coarser the loop and its sweep becomes greater, or the roving extends outwardly from the windingon the bobbin .agreater distance-regardless of "the diameter of the Winding onto which the yarn. :is :being wound. As the bobbin reciprocates.

tbohbin at all :of its "diameters. --retains:its normal characteristics it is mot caught and down and while the roving is :heavier .or r.coarser'.:the:1oop at all diameters of-the winding extends outwardly a greater distance than 'flnor- .Acc'ordingwtozthis invention; means: is provided zforcatchingvand breaking the rovingwhen. itbecomes heav-icr'or coarser than normal soth-at-the 1100-10 :sweeps :around at ;a greater. radius.

In .order to produce 'yarnhaving certain desired characteristicstheroving must have certain characteristics and when the iroving becomes coarser around in passing to the traveler but which :is

adapte'dpw'hen the roving becomes coarser and assumes .a greater ;loop and sweep, to catch and :brea'kthe roving whereby the coarser-roving will .not be wound'ontothebobbin.

'The'hook means :is movabletowards and away from the bobbin as the bobbin :moves --.up and down in such :a :mannerthat the hook is disposed at a certain distance from the winding on the While the roving by the hook. When, howeyenthez-roving becomes coarser soas to loopoutwardly a ggreaterqdistance than normal it is caught by the hook. .Bymovingrthe hook means in 'and'out it is; positioned so as to catch -the'roving at all diameters of the :bob-

bin when it is running heavier than normal.

'With the :foregoingand variouscther noveliea- :tures: and advantages and otherobjectszof-my in- .35 ".venti'on as will becomemoreapparent as theoriescription proceeds, the invention consists 1in-..cer-

tain novel features of construction and in the combination and arrangement --.of parts as will be hereinafter-more particularly pointed out in the claims hereuntoaannexediandmore iull-y .described and-referred to in-connection withthe-accompanying :drawings wherein .Fig, 1 is a iront 'elevational view of yarn catcher apparatus embodying the novel features of the invention;

:li'ig. 2 is an end-.elevational-view of the apparatus shown in Fig. 1 and Fig. 3 is an enlarged section-allplan view on the line 3-45 of Fig. .-1.

Referring now-to :the drawings .more in :detail "the invention will be -fully described.

So muchcf a spinning .frame .as is necessary to facilitate a clear understanding of the invention is shown in dash lines. :Longitudinally .extending :rollerbeams-at opposite sides .of .a frame are represented by 2 a part of the frame is shown at 4 and side rails are indicated by 6. Traveler guide rings 8 are carried by the rails 6 around which travelers Ill rotate. Bobbins l2 reciprocate up and down through openings in the rail as they are rotated. Rovings extend downwardly from mechanism on the roller beams, through the travelers l onto the rotating bobbins whereby the spinning is accomplished and the yarn is wound on the bobbins.

As shown in Fig. 1, the roving loops outwardly at R and sweeps around the bobbin. The distance from the winding to the loop of the roving is substantially constant while the roving retains the desired normal characteristics. With this constant distance the roving is at a greater distance from the axis of the bobbin when the winding of a greater diameter is being served than when a smaller diameter is in the ring. When the roving becomes coarser the loop becomes relatively greater or the distance between the winding and loop becomes greater at all diameters of the Winding.

The apparatus of this invention includes hooks for catching and breaking the roving when they become heavier so as to form a greater loop or sweep of the loop as will now be described.

Supports 20 are provided for the front and rear sides of a spinning frame at opposite ends thereof, and they may be secured at upper and lower ends to parts of the frame. There may be as many such supports at front and rear sides of the frame as may be desired and will depend on the length thereof. The supports may be secured together by any suitable means to provide a strong rigid supporting structure.

Guide brackets 22 are secured to the supports 20 in any convenient manner and have upper and lower spaced arms 24 and an outer end member 26 secured thereto. A longitudinally extending hook bar 26 has opposite end portions disposed in these brackets 22. Rods 28 carried by the bar are slidable in the members '26 and spring 39 around said rods 28 between the bars and members 26 urge the bar inwardly. The rods 28 may be secured to the member 26 with the bar slidable thereon, if desired.

In Fig. 2 the bars 26 are shown in retracted positions and are moved outwardly by the cams which are formed to permit retraction thereof by the springs 30 which urge the bars against the cams.

When the shafts 35 in Fig. 2 are rotated clockwise the bars 26 are moved outwardly. When the said shafts are rotated in a reverse direction the bars move inwardly to the supports 20.

The shafts 36 are preferably rocked simultaneously and is accomplished in one way by arms 40 which are fixed thereto and have free ends pivotally connected at 42 to a link 42'.

An arm 46 is fixed to one of the shafts 3B and a link 48 connected thereto at 50 has a roll 52 on its lower end which is in a groove 54 of a cam 56. Said cam may be fixed to such a shaft as 58 which is rotatable in frame part 4 of the spinning frame. The lower end of link 48 is provided with a slot 49 whereby it is guided on shaft 58 for up and down movements.

As the bobbins rotate and move up and down relative to the rails, the different diameters Of winding are served. The bars move in and out accordingly as the bobbins move up and down so that the hooks are at a certain distance from the winding and bobbin. This distance is normally such that the loops of roving in their cir- 4 cular sweep will pass in front of and forwardly of the hooks.

When however a roving becomes coarser the loop becomes greater so that it sweeps around the bobbins at a greater distance from the axis of the spindle and is caught by a hook and is broken.

The invention may be embodied in other specific forms without departing from the essential characteristics thereof. Hence, the present embodiments are therefore to be considered in all respects merely as being illustrative and not as being restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all modifications and variations as fall within the meaning and purview and range of equivalency of the appended claims are therefore intended to be embraced therein.

What it is desired to claim and secure by Letters Patent of the United States is:

1. Apparatus for engaging rovings on a spinning frame as they are being wound on a row of bobbins rotating on vertically disposed and iongitudinally spaced axes comprising in combination, longitudinally spaced vertically disposed supports adapted to be located at opposite ends of a row of bobbins, guide means fixed on said supports, a hook bar having opposite ends slidably supported in said guide means for movements of the bar in opposite directions in a horizontal plane, longitudinally spaced hooks fixed to said bar for engaging rovings, operating means acting on opposite ends of the hook bar for moving it in one direction, and yielding means acting on opposite ends of the hook bar for moving it in an opposite direction.

2. Apparatus for engaging rovings being wound on a longitudinally spaced row of bobbins rotatable on vertical axes of a spinning frame comprising in combination, longitudinally spaced vertically extending supports adapted to be located at opposite ends of a row of bobbins, a longitudinally extending horizontally disposed hook bar and coacting guiding means between opposite ends of the bar and said supports adapted to facilitate movements of the bar in opposite directions relative to the supports and in a horizontal plane, hooks adapted to be engaged by rovings fixed to said bar in spaced relation, bearing means fixed to said supports, a longitudinally extending oscillatable cam shaft in substantial parallelism with said hook bar having opposite ends journalled in said bearing means, cams fixed on said shaft adjacent opposite ends of the bar engageable therewith adapted as the cam shaft oscillates in one direction, spring means at opposite ends of the bar urging it against said cams and in an opposite direction, and means to oscillatate said cam shaft in opposite directions.

3. Apparatus for engaging rovings being wound on spinning frame bobbins which are rotatable on vertical axes and arranged in transversely spaced rows with the bobbins of a row longitudinally spaced comprising in combination, longitudinal spaced vertically extending supports arranged in two pairs with the supports of a pair adapted to be located at opposite ends of a row of bobbins, longitudinally extending horizontally disposed hook bars and guiding means between opposite ends of the bars and the supports of a pair thereof adapted to facilitate movements of the bar in opposite directions relative to the supports and in horizontal planes, hooks adapted to be engaged by rovings fixed to said bars in spaced relation, bearing means fixed to the supports of the pairs thereof, longitudinally extending oscillatable cam shafts in substantial parallelism with said hook bars having opposite ends journalled in said bearing means, cams fixed on said cam shafts adjacent opposite ends of the hook bars engageable therewith and adapted as the cam shafts oscillate in one direction to move the said hook bars in one direction, spring means at opposite ends of the hook bars urging them against said cams and in opposite directions, means connected to one of said cam shafts for oscillating it in opposite directions, and op- REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Booth Sept. 14, 1915 Number 

